1. +50dBm TX TPO: 100Watts (+50dBm) Start with a Transmitter

2. TX TPO: 100Watts (+50dBm) Line Loss -1dB Add some transmission line

3. TX TPO: 100Watts (+50dBm) Line Loss -1dB Antenna Gain +9dB And an antenna

4. TX TPO: 100Watts (+50dBm) Line Loss -1dB Antenna Gain +9dB Plus a radome for ice protection Radome Loss -.5dB

5. TX TPO: 100Watts (+50dBm) Line Loss -1dB Antenna Gain +9dB ERP: 57.5dBm (562Watts) Now compute the Effective Radiated Power Radome Loss -.5dB

6. TX TPO: 100Watts (+50dBm) Line Loss -1dB Antenna Gain +9dB Free Space Loss -109dB (44 miles on 155 MHz) Path Loss -50dB (Terrain obstructions, vegetation, buildings on path to this point) Compute losses to a receive location Radome Loss -.5dB

7. TX TPO: 100Watts (+50dBm) RX Threshold: 0.7uV (-110dBm) Line Loss -1dBLine Loss -.5dB Antenna Gain +9dBAntenna Gain 0dB Free Space Loss -109dB Path Loss -50dB RSL -102dBm Receiver Now consider a particular receiver at that location Radome Loss -.5dB Link Budget +50.0 +9.0 -0.5 -109.0 -50.0 +0.0 -0.5 ---------------- -102.0 dBm Exceeds Receiver input requirement.

8. TX TPO: 100Watts (+50dBm) Line Loss -1dB Radome Loss -.5dB Antenna Gain +9dB Free Space Loss -109dB Path Loss -50dB RX Threshold: 0.5uV (-110dBm) Line Loss -.5dB Antenna Gain +6dB RSL -96dBm Receiver with different Antenna Consider other receiver configurations at the same location

9. TX TPO: 100Watts (+50dBm) Line Loss -1dB Radome Loss -.5dB Antenna Gain +9dB Free Space Loss -109dB Path Loss -80dB RX Threshold: 0.5uV (-110dBm) Line Loss -.5dB Antenna Gain 0dB RSL -132dBm (BELOW RX Requirement) Receiver with different Path Loss Consider other receiver configurations at the same location

10. TX TPO: 100Watts (+50dBm) RX Threshold: 0.7uV (-110dBm) Line Loss -1dBLine Loss -.5dB Antenna Gain 0dB Free Space Loss -109dB Path Loss -50dB RSL -102dBm Receiver System design using TAP Radome Loss -.5dB Field Strength Calculations

11. TX TPO: 100Watts (+50dBm) RX Threshold: 0.7uV (-110dBm) Line Loss -1dBLine Loss -.5dB Antenna Gain +9dBAntenna Gain 0dB Free Space Loss -109dB Path Loss -50dB RSL -102dBm Receiver System design using TAP Radome Loss -.5dB Facility Lookup Field Strength Calculations

12. TX TPO: 100Watts (+50dBm) RX Threshold: 0.7uV (-110dBm) Line Loss -1dBLine Loss -.5dB Antenna Gain +9dBAntenna Gain 0dB Free Space Loss -109dB Path Loss -50dB RSL -102dBm Receiver System design using TAP Radome Loss -.5dB Line Lookup Facility Lookup Field Strength Calculations

13. TX TPO: 100Watts (+50dBm) RX Threshold: 0.7uV (-110dBm) Line Loss -1dBLine Loss -.5dB Antenna Gain +9dBAntenna Gain 0dB Free Space Loss -109dB Path Loss -50dB RSL -102dBm Receiver System design using TAP Radome Loss -.5dB Antenna Lookup Line Lookup Facility Lookup Field Strength Calculations